cli.py 文件源码

def _migrate_legacy_app_data_if_just_upgraded_and_user_agrees():
        if is_cli_base_dir_untouched() and legacy_base_dir_exists():
            print('Application data from previous Indy version has been found')
            answer = prompt('Do you want to migrate it? [Y/n] ')

            if not answer or answer.upper().startswith('Y'):
                try:
                    combined_migration.migrate()
                    # Invalidate config caches to pick up overridden config
                    # parameters from migrated application data
                    invalidate_config_caches()
                    print('Application data has been migrated')

                except Exception as e:
                    print('Error occurred when trying to migrate'
                          ' application data: {}'.format(e))
                    traceback.print_exc()
                    print('Application data has not been migrated')

            else:
                print('Application data was not migrated')